Tides Today & Tomorrow in New Castle, DE

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in New Castle, DE.
Next low tide : in 20m at 1:43 am (0.8 ft)
Next high tide : 7:16 am (5.3 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:35 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8551201
Common Questions About Tides

New Castle, DE Tides - Apr 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:355.411:005.44:510.15:230.06:467:25Waxing Gibbous1Wed
2Thu11:185.411:425.55:390.06:060.06:447:26Full Moon2Thu
3Fri11:595.36:250.06:460.06:437:27Full Moon3Fri
4Sat12:195.512:375.37:080.07:240.16:417:28Full Moon4Sat
5Sun12:545.51:135.27:490.07:590.26:407:29Full Moon5Sun
6Mon1:255.51:475.18:290.18:320.36:387:30Waning Gibbous6Mon
7Tue1:545.62:225.09:090.29:050.36:367:31Waning Gibbous7Tue
8Wed2:255.62:595.09:500.39:400.46:357:32Waning Gibbous8Wed
9Thu3:015.73:425.010:340.410:220.56:337:33Waning Gibbous9Thu
10Fri3:475.74:335.011:240.511:160.56:327:34Third Quarter10Fri
11Sat4:415.65:335.012:210.56:307:35Third Quarter11Sat
12Sun5:465.66:405.112:210.61:220.56:297:36Third Quarter12Sun
13Mon6:575.67:465.31:310.52:230.46:277:37Third Quarter13Mon
14Tue8:085.68:495.52:400.43:230.36:267:38Waning Crescent14Tue
15Wed9:135.89:475.93:450.24:200.16:247:39Waning Crescent15Wed
16Thu10:125.910:426.24:460.05:15-0.16:237:40Waning Crescent16Thu
17Fri11:076.011:336.45:44-0.26:07-0.26:217:41New Moon17Fri
18Sat11:596.06:39-0.46:57-0.26:207:42New Moon18Sat
19Sun12:226.512:505.97:32-0.47:45-0.26:187:43New Moon19Sun
20Mon1:106.51:415.88:23-0.48:320.06:177:44Waxing Crescent20Mon
21Tue1:586.42:315.69:13-0.29:190.16:167:45Waxing Crescent21Tue
22Wed2:476.23:235.410:030.010:070.46:147:46Waxing Crescent22Wed
23Thu3:376.04:165.310:530.210:560.66:137:47Waxing Crescent23Thu
24Fri4:295.75:115.211:440.311:480.76:117:48First Quarter24Fri
25Sat5:245.56:075.112:350.46:107:49First Quarter25Sat
26Sun6:225.47:045.112:410.81:270.56:097:50First Quarter26Sun
27Mon7:205.38:005.21:370.82:180.56:077:51First Quarter27Mon
28Tue8:175.38:535.42:320.73:080.46:067:52Waxing Gibbous28Tue
29Wed9:105.39:425.53:260.63:570.36:057:53Waxing Gibbous29Wed
30Thu10:005.310:275.74:190.44:430.36:047:54Waxing Gibbous30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8551201)

Common Questions About New Castle, DE Tides

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What time does the tide turn (slack tide) in New Castle, DE today?

Slack tide in New Castle, DE is approximately 4:29 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in New Castle, DE?

New Castle, DE is currently in a transitional phase. Tonight's moon is 67% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are New Castle, DE tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for New Castle, DE?

Tide predictions for New Castle, DE come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for New Castle, DE?

Tide data for New Castle, DE is sourced from NOAA Station #8551201. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8551201.

What is the moon phase in New Castle, DE tonight?

Tonight the moon over New Castle, DE is First Quarter (67% illuminated). This places New Castle, DE in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA